Dell PowerEdge M710 Fabric OS Command Reference Manual Supporting Fabric - Page 763

portLoopbackTest 2 Notes Do not abort this test prematurely, using CTRL-C or q to quit. Doing so may cause the test to report unexpected errors. This command does not support High Availability (HA). The Brocade DCX series cannot negotiate speeds of 1 Gbps. The switch must be disabled before you can run this diagnostics. The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in place. Refer to chapter 1, "Using Fabric OS commands" and Appendix A, "Command Availability" for details. Operands This command has the following operands: --slot slot Specifies the number of the slot on which to run the diagnostics. All eligible ports relative to the slot number are tested. The default is 0 and designed to operate on fixed-port-count products. -nframes count Specifies the number of frames to send. The test progresses until the specified number of frames has been transmitted on each port. The default value is 10. -lb_mode mode Specifies the loopback mode for the test. By default, this test uses the internal loopback. Valid values depend on the platform on which the command is executed. Unsupported values are rejected with an appropriate message. 1 Port Loopback (loopback plugs) 2 External (SERDES) loopback 5 Internal (parallel) loopback 7 Backend bypass & port loopback -spd_mode mode 8 Backend bypass & SERDES loopback (supported only on a chassis) Specifies the speed mode for the test. This parameter controls the speed at which each port is operated. 0 Runs test at 1 Gbps, 2 Gbps, and 4 Gbps. 1 Runs test at 1 Gbps. 2 Runs test at 2 Gbps. 4 Runs test at 4 Gbps (Default for 4 G platforms). -ports itemlist 8 Runs test at 8 Gbps (Default for 8 G platforms). Specifies a list of blade ports to test. By default, all of the blade ports in the specified slot (--slot) are used. See itemList for more information on the itemlist parameter. Examples To run a functional test in default mode: switch:admin> portloopbacktest Running portloopbacktest PASSED. Fabric OS Command Reference 731 53-1001764-02